Color

#1ff99b

#1ff99b
hex#1ff99b
rgbrgb(31, 249, 155)
hslhsl(154, 95%, 55%)
oklchoklch(0.866 0.202 156.8)
Closest name: mediumspringgreen (#00fa9a)Relative luminance 0.7041

Colors that go with #1ff99b

Violet, Charcoal and Deep Sky Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f91f7e

#1ff92e · #1febf9

#9b1ff9 · #f99b1f

Split-complementary

Open in tool →

#f91feb · #f92e1f

#2e1ff9 · #f91f7e · #ebf91f

Contrast

#1ff99b as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #03864e as the text (4.64:1)
  • AAA: use #036339 as the text (7.37:1)
  • AA: or shift the background to #5e5e5e (4.66:1)
  • AAA: or shift the background to #424242 (7.22:1)
Aaon black
15.08:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1ff99b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #1ff99b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1ff99b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1ff99b-a2beb5-d459ca-1f2d2d-e9f1ea?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md